+Venom (14)
Target creature gets +1/+2 and gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy it.)
Attacking Elves you control have deathtouch.
Whenever an Elf you control dies, each opponent loses 1 life and you gain 1 life.
Enchant land
Whenever enchanted land becomes tapped, its controller loses 2 life.
: Destroy enchanted land.
Whenever enchanted land becomes tapped, Psychic Venom deals 2 damage to that land's controller.
Put three -1/-1 counters on target creature. Its controller loses 3 life unless they sacrifice another nonland permanent or discards a card.
Enchant creature
Whenever enchanted creature blocks or becomes blocked by a non-Wall creature, destroy the other creature at end of combat.
Sliver creatures you control have deathtouch. (Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.)
Choose target creature. At this turn's next end of combat, destroy all creatures that blocked or were blocked by it this turn.
Changeling (This card is every creature type.)
Deathtouch
Flying
Whenever Venomous Dragonfly blocks or becomes blocked by a creature, destroy that creature at end of combat.
Whenever enchanted creature deals damage to a creature, destroy the other creature.
When Venomous Hierophant enters the battlefield, mill three cards.
Destroy target enchanted permanent.
, : Venomspout Brackus deals 5 damage to target attacking or blocking creature with flying.
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)